How to use a USB powered controller without a laptop

After every gig my laptop is the first thing to get taken down. If you are using a USB powered controller this means you can’t use the microphone, or can you! I learned that if you plug the USB power cable into a charging brick, the controller receives enough power to get the microphone to work! For the quick last announcement it works great. For more videos from DJ Jay Brannan visit www.ProDJTV.com